How far is Decatur, IL, from Alamosa, CO?
The distance between Alamosa (San Luis Valley Regional Airport) and Decatur (Decatur Airport) is 933 miles / 1502 kilometers / 811 nautical miles.
The driving distance from Alamosa (ALS) to Decatur (DEC) is 1104 miles / 1776 kilometers, and travel time by car is about 20 hours 14 minutes.
San Luis Valley Regional Airport – Decatur Airport
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Distance from Alamosa to Decatur
There are several ways to calculate the distance from Alamosa to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 933.098 miles
- 1501.675 kilometers
- 810.840 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 930.959 miles
- 1498.233 kilometers
- 808.981 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Alamosa to Decatur?
The estimated flight time from San Luis Valley Regional Airport to Decatur Airport is 2 hours and 16 minutes.
What is the time difference between Alamosa and Decatur?
The time difference between Alamosa and Decatur is 1 hour. Decatur is 1 hour ahead of Alamosa.
Flight carbon footprint between San Luis Valley Regional Airport (ALS) and Decatur Airport (DEC)
On average, flying from Alamosa to Decatur generates about 146 kg of CO2 per passenger, and 146 kilograms equals 322 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Alamosa to Decatur
See the map of the shortest flight path between San Luis Valley Regional Airport (ALS) and Decatur Airport (DEC).
Airport information
| Origin | San Luis Valley Regional Airport |
|---|---|
| City: | Alamosa, CO |
| Country: | United States  |
| IATA Code: | ALS |
| ICAO Code: | KALS |
| Coordinates: | 37°26′5″N, 105°52′1″W |
| Destination | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |